Apparatus and method for making composition strips



Feb. 23, 1932. c, rqsc 1,846,325

APPARATUS AND METHOD FOR MAKING COMPOSITION STRIPS Original Filed Feb. 19, 1930 I meridfziacw Ittl ll atented Feb, 23, 1932 ALBERT U. FISCHER, 0F CHIGAGO, ILLINOIS nrrnnarns arm marrron non.

MAKING comrosrrrons'rnrrs application died February in, 1930, Serial No. 429,559. Renewed May 13, '1931.

it his invention relates to the fabrication of composition constructional strips, and particularly pertains to a laminated structure including a flexible reenforcing foundation layer and a surface covering or coverings of elastic and compressible material.-

tlne of the objects of the invention is to fabricate in a continuous layer operation a composition strip composed of a pluralityof layers of compressible and elastic material, such as rubber or bituminous ,material, fed from an extrusion machine in contact with a reenforcing foundation layer, and compressed into a composite laminated structure. The compressible and elastic material is extruded in a warm plastic condition, thereby securely bonding with the foundation sheet which may advantageously be a, waterproof sheet, such as saturated felt.

With the foregoing object in View and others to be mentioned hereafter, the invention consists in the novel and improved construction and arrangement of parts, as described and claimed, and as illustrated in the accompanying drawing. g

in the drawing the single figure is aview in elevation and'partially in section of an apparatus embodyingv the invention.

Referring now to the drawing for a more particular description, the invention is typiecl by the manufacture of a composition strip, block or the like, which is adapted tobe employed in the constructional material art, especially for building and paving for surfacmg and/or separating rigid elements.

Numeral 2 designates an extruder head or die, which is attached to an extrusion device, through which plastic material is adapted to be fed. A wedge or block 3, is fitted in the bore of the head to divergetlie plasticniaterial of rubber, asphalt or the like into two rollsto a point near the extruder hadto reseparate layers 4 and o which are applied to surface "foundation sheets 6 and-7,.such as saturated felt.

The foundation sheets are fed from supply.

ceive the plastic layers, after which the com-., posite layers are each fed over a series of rolls 8, or other means, beneath a smoothing de vice 9, by which they are compressed. dation layer in juxta-position with each of suitable smoothing device is typified by a series of rolls 10, over whichan endless conveyor 9 may be circumvolved. Plates 11 may be advantageously positioned in the path of the foundation sheet to support it while being compressed by the smoothing device.

Subsequently the coated sheets may be superposed by additional forming means 12 and permanently. adhered, or, they may be only temporarily superposed, While the forming sheet is subdivided in lengths of suitable sizes. If they are to be permanently adhered a liquid'element may be ap lied to-the contacting surfaces of the felt s eets.

Though I have described with particularity of detail a certain embodiment of the invention, yet it is not to be understood therefrom that the invention is restricted to the particular embodiment disclosed. Various modifications may bemade by those skilled in the art without departing from the spirit of the invention.

I claim:

1. A method for fabricating composition strips characterized by forming layers of plastic materiahsuperposing each of the layers on a foundation sheet and then superposing the resulting "composite strips.

2. A method for fabricatingmomposition strips. characterized by form ng layers of plastiomaterial, superposing each of the layem on a. felt saturated sheet, and then superp'osing the resulting strips. f 5

3. method for fabrlcating composition strips characterized by forming layers of plastic material, superposing each of the lay-i LI strips comprising means for forming layers of plastic material, means for feedings. foundation layer in juxta-position with each of the plastic layers, means forcompres'sing the individual composite layers, and means for superposmg the composite layers.

5. Apparatus for fabricating composition strips comprising means for forming layers of plastic material, means for feeding a founthe plastic-layers, a plate over which the jux taposed layers are traversed, means for compressing said layers, and means for SUPGIPOS-Q ing the resulting structures.

6. A method for fabricating composition strips characterized by formlng layers of plastic material, superposing each of the layers on a foundation sheet, superposing the resulting composition strips, and cutting the combined structure into suitable pieces.

7 A method for fabricating composition strips characterized by forming layers of plastic material, superposing each of the layers on a foundation sheet, inter-posing an adhesive means between the resulting composite strips, and then permanently attaching the resulting composite strips together.

8, A method for fabricating composition strips characterized by forming layers of plastic material, superposing each of the layers on a felt saturated sheet, superposing the resulting composite strips, and cutting the combined structure into suitable pieces.

9. A method for fabricating composition strips characterized by forming layers of plastic material, superposing each of the layers on a felt saturated sheet, interposing an adhesive means between the resulting composite strips, and then permanently attaching the resulting strips together.

10. A method for fabricating composition strips characterized by forming layers of plastic material superposing each of the layers on a foundation sheet, temporarily superposing the resulting composite strips, cutting the combined structure into suitable pieces,

composite strips.

11. A method for fabricating composition strips characterized by 'formmg layers of plastic material, superposi'ng each of'the la and separating the temporarily superposed ers on a felt saturated sheet, temporari y superposingthe resulting composite stri. s, cutting the combined structure into suitable pieces, and separating the temporarily superposed composlte strips.

Si ed at Chicago, in the county of Cook and tate of Illinois, this 17th day of February 1930.

ALBERT C. FISCHER. 

